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Chocolate Chip Walnut Cookies

These thick and chewy cookies are loaded with melty chocolate chips and crunchy toasted walnuts. Classic, cozy, and perfect for every occasion!
Prep Time 15 minutes
Cook Time 12 minutes
Total Time 1 hour
Servings 24 cookies

Ingredients
  

  • 1 cup 2 sticks unsalted butter, softened
  • ¾ cup brown sugar
  • ½ cup granulated sugar
  • 1 large egg + 1 egg yolk
  • 2 tsp vanilla extract
  • 2 ½ cups all-purpose flour
  • 1 tbsp cornstarch
  • 1 tsp baking soda
  • ½ tsp salt
  • 1 ½ cups semi-sweet chocolate chips
  • 1 cup toasted walnuts chopped
  • Optional: flaky sea salt for topping

Instructions
 

  • Toast walnuts at 350°F for 8–10 minutes, cool and chop.
  • Cream butter and sugars until light and fluffy.
  • Add egg, egg yolk, and vanilla. Beat to combine.
  • In a separate bowl, whisk flour, cornstarch, baking soda, and salt.
  • Add dry ingredients to wet and mix until a soft dough forms.
  • Fold in chocolate chips and walnuts.
  • Scoop dough into balls and chill for 30 minutes.
  • Preheat oven to 350°F. Line trays with parchment.
  • Bake cookies for 11–13 minutes until edges are golden.
  • Cool 5 minutes on tray, then transfer to wire rack.

Notes

  • Toasting the walnuts enhances their flavor and crunch — don’t skip this step for best results.
  • For extra gooey centers, slightly underbake the cookies and let them finish setting on the tray.
  • Add a sprinkle of flaky sea salt on top before baking for a delicious sweet-and-salty contrast.
  • Feel free to swap chocolate chips for chopped chocolate bars or use a mix of milk, dark, or white chocolate.
  • To make ahead, freeze unbaked dough balls and bake straight from frozen (add 1–2 minutes to bake time).
  • Want thicker cookies? Stack two smaller dough balls on top of each other before baking to help the cookies bake tall and chunky.